Population Ecology of mesopelagic fishesSep 1, 2019Thorvaldsen, K. G., Neuenfeldt, S., Mariani, P. & Nielsen, J. R.DTU ->←Forsøksfiske 2019 Oppsummering Improved density measurements of mesopelagic fish and the presence of physonect siphonophores in sound scattering layers, measured with multifrequency acoustics and a stereo camera mounted on a lowered probe→